612874961 has 4 divisors (see below), whose sum is σ = 613289712. Its totient is φ = 612460212.

The previous prime is 612874957. The next prime is 612874967. The reversal of 612874961 is 169478216.

612874961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 612874961 - 2² = 612874957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612874967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205151 + ... + 208116.

It is an arithmetic number, because the mean of its divisors is an integer number (153322428).

Almost surely, 2^612874961 is an apocalyptic number.

It is an amenable number.

612874961 is a deficient number, since it is larger than the sum of its proper divisors (414751).

612874961 is a wasteful number, since it uses less digits than its factorization.

612874961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414750.

The product of its digits is 145152, while the sum is 44.

The square root of 612874961 is about 24756.3115386764. The cubic root of 612874961 is about 849.4228889950.

The spelling of 612874961 in words is "six hundred twelve million, eight hundred seventy-four thousand, nine hundred sixty-one".